onLongClick() - This returns a boolean to indicate whether you have consumed the event and it should not be carried further. That is, return true to indicate that you have handled the event and it should stop here; return false if you have not handled it and/or the event should continue to any other on-click listeners.

Are you returning true from your onLongClick() and still getting the normal click event?

Edited to add: For a ListView, you may be using OnItemLongClickListener. The onItemLongClick() there uses a similar boolean return value to indicate whether it consumed the event.